Velero IV water & sediment sampling & testing, [1975?]

Students working in Velero IV (ship) laboratory and on deck (also some underwater scenes of sample collection), [1975?]: Female student testing water in laboratory. Close-up of diving knife scraping sea floor exposing oil (black-and-white television images). Male student working with water sample in laboratory. Male student on deck with female student taking measurements of box core sample. Three students on deck near mountainous coastline watching sea bottom sampler "box corer" deployment (footage is reversed). Underwater view of sea bottom sampler in operation. Male student and female student examining water samples in laboratory. Mud sample in metal box. Close-up of washing sample. Man on deck working with cable for Nansen bottle?. Female student testing water in laboratory. Male student working with Nansen bottles in laboratory. "Velero trims" -- label on container. Note: 15 separate reels and a few trims. Notes on trim contents in container: "Interior Valero VI [sic] (new): 1 (x). Girl on making water test; 2. Bob receiving water sample has trouble tying it up; 3. Bob passes sample over, girl makes test; 4. Bob's hand passes bottle over (close-up); 5. Girl's hand receiveds bottle, pours in test solution (close-up); 6 (good). Bob inspects water bottles (long shot); 7. Water flushed out (no good); 8. Bob receives second type of bottle; 9 (?). New core sample (take one); 10. New core sample (take two); 11. Messenger (close-up) (shirt[?] see); 12. Messenger (close-up); 13. Messenger (seen from below); 14. Operator (good); 15. New machinery (good), sky (no good); 16. New machiner (take 2) (good); 17. Operator (no good); 18. Screening (close-up) (good); 19. Girl and Bill in lab (good?); 20. Girl and Bill in Lab (not as good)." Labels on trims: "x1. Girl and test of water", "x2. bob receives sample, "x3. Bob passes sample", "III 3.b Operator", "x4. Close-up Bob hand", "x5. Close-up girls hands", "x6. Bob inspects water bottles", "x7-8. water flushed, Bob gets second bottle", "8", "x9-10. Measuring box core", "11. boxcore decent trim", "trim x11-12 attach messenger", "x14-17. New operator at machinery, trims", "x18. screening material in box, trim, old and new".